Product
Vivo iQOO Z7s
Vivo iQOO Z7s
Samsung Galaxy F55
Samsung Galaxy F55
Battery
Charging 44W wired, 50% in 24 min 45W wired
Type 4500 mAh 5000 mAh
Body
Build - Glass front, silicone polymer (eco leather) back, plastic frame
Dimensions 158.9 x 73.5 x 7.8 mm (6.26 x 2.89 x 0.31 in) 163.9 x 76.5 x 7.8 mm (6.45 x 3.01 x 0.31 in)
SIM Nano-SIM + Nano-SIM Nano-SIM + Nano-SIM
Weight 172 g (6.07 oz) 180 g (6.35 oz)
  IP54 dust protected and water resistant (water splashes) -
Comms
Bluetooth 5.1, A2DP, LE 5.2, A2DP, LE
NFC No Yes
Positioning GPS, GLONASS, GALILEO, BDS, QZSS GPS, GALILEO, GLONASS, BDS, QZSS
Radio Unspecified No
USB USB Type-C 2.0, OTG USB Type-C 2.0, OTG
WLAN Wi-Fi 802.11 a/b/g/n/ac, dual-band, Wi-Fi Direct Wi-Fi 802.11 a/b/g/n/ac/6, dual-band, Wi-Fi Direct
Display
Protection Schott Xensation glass -
Resolution 1080 x 2400 pixels, 20:9 ratio (~413 ppi density) 1080 x 2400 pixels, 20:9 ratio (~393 ppi density)
Size 6.38 inches, 98.3 cm2 (~84.1% screen-to-body ratio) 6.7 inches, 108.4 cm2 (~86.4% screen-to-body ratio)
Type AMOLED, 90Hz, 1300 nits (peak) Super AMOLED+, 120Hz, 1000 nits (HBM)
Features
Sensors Fingerprint (under display, optical), accelerometer, gyro, proximity, compass Fingerprint (under display, optical), accelerometer, gyro, proximity, compass
Launch
Announced 2023, May 22 2024, May 17
Status Available. Released 2023, May 22 Available. Released 2024, May 27
Main Camera
Dual 64 MP, (wide), 1/1.97", 0.7µm, PDAF, OIS 2 MP, f/2.4, (depth) -
Features LED flash, HDR, panorama LED flash, panorama, HDR
Triple - 50 MP, f/1.8, (wide), 1/1.56", 1.0µm, PDAF, OIS 8 MP, f/2.2, 123˚ (ultrawide) 2 MP, f/2.4, (macro)
Video 1080p@30fps 4K@30fps, 1080p@30/60fps, gyro-EIS, OIS
Memory
Card slot microSDXC (uses shared SIM slot) microSDXC (uses shared SIM slot)
Internal 128GB 6GB RAM, 128GB 8GB RAM 128GB 8GB RAM, 256GB 8GB RAM, 256GB 12GB RAM
  UFS 2.2 -
Misc
Colors Norway Blue, Pacific Night Black, Apricot
Models I2223 SM-E556B/DS, SM-E556B
SAR 1.15 W/kg (head)     0.84 W/kg (body)     0.93 W/kg (head)    
Network
2G bands GSM 850 / 900 / 1800 / 1900 GSM 850 / 900 / 1800 / 1900
3G bands HSDPA 850 / 900 / 2100 HSDPA 850 / 900 / 1700(AWS) / 1900 / 2100
4G bands 1, 3, 5, 8, 38, 40, 41 1, 2, 3, 4, 5, 7, 8, 12, 17, 20, 25, 26, 28, 38, 40, 41, 66
5G bands 1, 3, 8, 28, 77, 78 SA/NSA 1, 3, 5, 7, 8, 20, 28, 38, 40, 41, 66, 77, 78 SA/NSA/Sub6
Speed HSPA, LTE, 5G HSPA, LTE, 5G
Technology GSM / HSPA / LTE / 5G GSM / HSPA / LTE / 5G
Platform
Chipset Qualcomm SM6375 Snapdragon 695 5G (6 nm) Qualcomm SM7450-AB Snapdragon 7 Gen 1 (4 nm)
CPU Octa-core (2x2.2 GHz Kryo 660 Gold & 6x1.7 GHz Kryo 660 Silver) Octa-core (1x2.4 GHz Cortex-A710 & 3x2.36 GHz Cortex-A710 & 4x1.8 GHz Cortex-A510)
GPU Adreno 619 Adreno 644
OS Android 13, Funtouch 13 Android 14, upgradable to Android 15, One UI 7
Selfie camera
Single 16 MP, f/2.0, (wide) 50 MP, f/2.4, (wide)
Video 1080p@30fps 4K@30fps, 1080p@30/60fps
Sound
3.5mm jack Yes No
Loudspeaker Yes Yes, with stereo speakers